<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<!DOCTYPE html>
<html lang="zh-CN">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>页面未找到 - 404 错误</title>
    <style>
        body {
            font-family: Arial, sans-serif;
            background-color: #f4f4f9;
            color: #333;
            margin: 0;
            padding: 0;
            text-align: center;
        }

        .container {
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            min-height: 100vh;
        }

        h1 {
            font-size: 5em;
            color: #e74c3c;
            margin: 0;
        }

        p {
            font-size: 1.2em;
            color: #555;
            margin: 10px 0 20px;
        }

        .btn {
            padding: 10px 20px;
            background-color: #3498db;
            color: white;
            font-size: 1.1em;
            border: none;
            border-radius: 5px;
            cursor: pointer;
            text-decoration: none;
        }

        .btn:hover {
            background-color: #2980b9;
        }

        footer {
            margin-top: 40px;
            font-size: 0.9em;
            color: #888;
        }

    </style>
</head>
<body>

<div class="container">
    <h1>404</h1>
    <p>抱歉，您访问的页面未找到。</p>
    <p>可能是页面已被移除或链接错误。</p>

    <!-- 返回首页按钮 -->
    <a href="javascript:window.history.back();" class="btn">返回</a>
</div>

<footer>
    <p>&copy; @123</p>
</footer>

</body>
</html>
